Media content player on an eyewear device

ABSTRACT

Systems and methods are provided for performing operations comprising: displaying, by one or more processors of an eyewear device, a plurality of media content control options; detecting, by a touch input interface of the eyewear device, a first touch input comprising a single finger touching the touch input interface; based on detecting the first touch input, causing a cursor to track the first touch input to navigate through the plurality of media content control options; based on detecting that the single finger has not been released from touching the touch input interface, displaying a second media content control option related to the first media content control option; and performing a selection associated with the second media content control option based on movement of the single finger along the touch input interface.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of priority to U.S. ProvisionalApplication Ser. No. 63/129,344, filed Dec. 22, 2020, which isincorporated in its entirety by reference herein. This application isrelated to U.S. patent application Ser. No. 17/301,284, filed Mar. 30,2021, which is incorporated in its entirety by reference herein.

FIELD OF USE

This application relates to eyewear devices.

BACKGROUND

Some electronics-enabled eyewear devices, such as so-called smartglasses, allow users to interact with virtual content while a user isengaged in some activity. Users wear the eyewear devices and can view areal-world environment through the eyewear devices while interactingwith virtual content that is displayed by the eyewear devices.

BRIEF DESCRIPTION OF THE DRAWINGS

Various ones of the appended drawings merely illustrate exampleembodiments of the present disclosure and should not be considered aslimiting its scope.

FIG. 1 is a diagrammatic representation of a networked environment inwhich the present disclosure may be deployed, in accordance with someexamples.

FIG. 2 is a diagrammatic representation of a messaging system, inaccordance with some examples, that has both client-side and server-sidefunctionality.

FIG. 3 is a diagrammatic representation of a data structure asmaintained in a database, in accordance with some examples.

FIG. 4 is a diagrammatic representation of a message, in accordance withsome examples.

FIG. 5 is a perspective view of an eyewear device according to anexample embodiment.

FIG. 6 is a flowchart showing example operations of the media contentcontrol interface system, according to an example embodiment.

FIGS. 7-9 are illustrative screens of a graphical user interface for themedia content control interface system, according to exampleembodiments.

FIG. 10 is a diagrammatic representation of a machine in the form of acomputer system within which a set of instructions may be executed forcausing the machine to perform any one or more of the methodologiesdiscussed herein, in accordance with some examples.

FIG. 11 is a block diagram showing a software architecture within whichexamples may be implemented.

DETAILED DESCRIPTION

The description that follows discusses illustrative embodiments of thedisclosure. In the following description, for the purposes ofexplanation, numerous specific details are set forth in order to providean understanding of various embodiments of the disclosed subject matter.It will be evident, however, to those skilled in the art, thatembodiments of the disclosed subject matter may be practiced withoutthese specific details. In general, well-known instruction instances,protocols, structures, and techniques are not necessarily shown indetail.

Typical smart glass platforms allow users to interact with various typesof virtual content. Such platforms are configured to display the virtualcontent in the lenses of the smart glasses. Interactions with suchvirtual content is usually limited to single button selections or voicenavigation because of the limited amount of user input interfaces thatare available on the smart glasses. Specifically, such smart glasses canonly include a single touch input interface. While such systems workwell to generally allow users to interact with virtual content, suchdevices do not enable users to navigate through complex menu structures.This limits the amount of content a user can navigate through and thetypes of interactions the user can perform.

The disclosed embodiments improve the efficiency of using the electronicdevice by providing a system that leverages multiple types of userinputs to seamlessly and quickly navigate through a complex menuhierarchy to control content playback on an eyewear device.Specifically, according to the disclosed techniques, a plurality ofmedia content control options are displayed by one or more processors ofan eyewear device. The disclosed embodiments detect, by a touch inputinterface of the eyewear device, a first touch input comprising a singlefinger touching the touch input interface. The disclosed embodimentsallow navigation via a cursor through the plurality of media contentcontrol options based on the first touch input to select a first mediacontent control option of the plurality of media content control optionsand display a second media content control option related to the firstmedia content control option in response to the first touch input. Thedisclosed embodiments perform a selection associated with the secondmedia content control option based on detecting movement of the singlefinger along the touch input interface.

The disclosed embodiments increase the efficiencies of the electronicdevice by reducing the amount of pages of information and inputs neededto accomplish a task. The disclosed embodiments further increase theefficiency, appeal, and utility of electronic eyewear devices.

Networked Computing Environment

FIG. 1 is a block diagram showing an example messaging system 100 forexchanging data (e.g., messages and associated content) over a network.The messaging system 100 includes multiple instances of a client device102, each of which hosts a number of applications, including a messagingclient 104 and other external applications 109 (e.g., third-partyapplications). Each messaging client 104 is communicatively coupled toother instances of the messaging client 104 (e.g., hosted on respectiveother client devices 102), a messaging server system 108 and externalapp(s) servers 110 via a network 112 (e.g., the Internet). A messagingclient 104 can also communicate with locally-hosted third-partyapplications 109 using Applications Program Interfaces (APIs). Themessaging system 100 includes an eyewear device 119, which hosts a mediacontent playback system 107, among other applications. The eyeweardevice 119 is communicatively coupled to the client device 102 via thenetwork 112 (which may include via a dedicated short-range communicationpath, such as a Bluetooth™ or WiFi direct connection).

The media content playback system 107 enables a user to navigate througha hierarchy of levels of a media content playback menu using varioustouch inputs. For example, the media content playback system 107presents a first level of the hierarchy of levels of a media contentplayback menu on the lenses of the eyewear device 119. The first levelof the media content playback menu includes a first set of options(e.g., a skip, fast-forward, pause, rewind, chapter select, sceneselect, series selection, volume control, episode selection, comment,and so forth). The media content playback system 107 detects a single orone finger touch on a touch input interface of the eyewear device 119.The single or one finger touch can be a press and hold operation whichactivates a display of a cursor on the lenses of the eyewear device 119.The media content playback system 107 can detect that the finger slidesalong the touch input interface. In response, the media content playbacksystem 107 moves the cursor to highlight a first option of the first setof options of the first level. In response to the media content playbacksystem 107 detecting that the finger no longer makes contact with thetouch input interface, or in response to the cursor remaining at aparticular location highlighting the first option for a specifiedthreshold period of time (e.g., 3 seconds), the media content playbacksystem 107 displays a second level of the media content playback menuhierarchy of levels. The second level of the hierarchy of levelsincludes a set of options corresponding to the first option. The secondlevel may be displayed in replacement of the first level in which casethe first set of options are removed from the display and the second setof options are displayed at the same or substantially the same locationas the first set of options. In some cases, the second set of optionsare presented above or below or adjacent to the first set of options,such that both the first and second sets of options are displayedsimultaneously. Any touch input received from the user when the secondset of options are displayed is associated with and navigates throughthe second set of options.

For example, the first level of the media content playback menu caninclude a first set of options that each adjusts playback in a differentway. In one example, the first set of options includes any one or moreof an option to select a series, an option to adjust volume, an optionto control a transport bar, or an option to adjust frame skippingoperations. The second level can include a second set of optionscorresponding to each one of the first sets of options.

As an example, if the option to select a series from the first level isselected by input consisting of a user dragging a single finger alongthe touch input interface of the eyewear device 119 until the cursorhighlights the series selection option and then releasing the fingerfrom the touch input interface, the media content playback system 107displays a second set of options in the second level that includesidentifiers of various series that the user may be interested in.Alternatively, the second set of options are displayed before the mediacontent playback system 107 detects the release of the finger from thetouch input interface and in response to determining that the seriesselection option has remained highlighted for a specified thresholdperiod of time (e.g., 3 seconds). The media content playback system 107can detect that the single finger has been dragged again along the touchinput interface to move the cursor to highlight a given seriesidentifier (e.g., a first series). If the first series is selected fromthe second level upon detecting release of the user's single finger fromthe touch input interface after the cursor highlights the first series(or if the first series is selected by keeping a cursor highlighting theseries for a specified threshold period of time, such as 3 seconds), themedia content playback system 107 displays a third set of options thatincludes a list of various episodes of the first series in a thirdlevel. Once the desired episode is selected in a similar manner, themedia content playback system 107 automatically plays the selectedepisode in the lenses of the eyewear device 119.

In some cases, the user may not be interested in any of the episodes ofthe series identifier that are displayed. In this case, no particularepisode is selected. The user may navigate back to the seriesidentifiers to select a different series identifier by the media contentplayback system 107 detecting touch of the touch input interface by twofingers. Namely, in response to detecting that the user has addedanother finger and is now touching the touch input interface with twofingers, the media content playback system 107 removes from display theplurality of episode identifiers and redisplays the plurality of seriesidentifiers. The media content playback system 107 can detect that thetwo fingers are dragged along the frame of the eyewear device 119 tonavigate the cursor to select a different series identifier. Forexample, if the cursor is maintained positioned over the differentseries identifier for the threshold period of time (while the twofingers continue to touch the touch input interface without moving), thedifferent series identifier that is highlighted is selected and thecorresponding episodes of the highlighted series are displayed. A givenepisode can be selected in response to the media content playback system107 detecting dragging of one or two fingers along the touch inputinterface and keeping the given episode highlighted for a thresholdperiod of time or in response to detecting release of the finger orfingers from the touch input interface.

In some embodiments, the media content playback system 107 determinesthat a frame skipping operations from the first level are selected bythe single finger. In such cases, the media content playback system 107displays the second set of options in the second level that include oneor more of a fast forward operation, seek, a rewind operation, a nextepisode operation, a previous episode operation, and so forth. The mediacontent playback system 107 detects that a cursor has been moved bydetecting dragging of the finger along the frame to highlight the seekor fast forward operation. In response to the seek or fast forwardoperation being highlighted for a specified threshold period of time(e.g., 3 seconds), the media content playback system 107 displays aslider to seek or fast forward through playback of content beingdisplayed by the media content playback system 107 on the eyewear device119. For example, the user can drag the single finger along the frame ofthe eyewear device 119 to move the slider to a desired position. As theslider moves the playback of the content seeks or fast forwards to adifferent playback position. When the finger is released, playbackresumes from the selected playback position.

In some embodiments, the media content playback system 107 determinesthat a volume control from the first level are selected by the singlefinger. In such cases, the media content playback system 107 displays aslider to adjust volume of the media content being played by the eyeweardevice 119. For example, the media content playback system 107 candetect dragging of the single finger along the frame of the eyeweardevice 119. In response, the media content playback system 107 moves theslider to a desired position. As the slider moves the volume of thecontent changes. When the finger is detected as being released (nolonger touching the touch input interface), playback resumes with theselected volume and the volume control slider is removed from thedisplay.

The media content playback system 107 may receive a two-finger ormulti-finger touch of a second option that is included in the second setof options. In some cases, the two-finger touch input may be received bythe touch input interface of the eyewear device 119. In response, themedia content playback system 107 navigates back to a previous level(e.g., navigates to the first level of the hierarchy of levels from thesecond level). In some cases, the first set of options of the firstlevel replaces the display of the second set of options of the secondlevel. In cases where the first and second sets of options aresimultaneously displayed, the second set of options is removed from thedisplay and navigation returns to the first set of options. Namely, anyinput received subsequent to the two-finger touch is associated with thefirst level of the hierarchy (e.g., the first set of options). In thisway, a user can quickly and easily navigate up sequential levels of thehierarchy by providing a one-finger touch of respective options of thelevels of the hierarchy that are presented and can quickly and easilynavigate back down sequential levels of the hierarchy by providing atwo-finger touch of a particular option or anywhere on the screen.

In some embodiments, the media content playback system 107 enables auser to quickly and easily navigate to a next level of a hierarchy oflevels and select an option in the next level and then return back tothe original level of the hierarchy without lifting the user's fingerfrom the touch sensor. As an example, the first level of a hierarchy oflevels is presented in which the first set of options is presented. Themedia content playback system 107 detects a one-finger touch and holdinput over a given option of the first set of options. For example, theuser may touch an area of the touch sensor corresponding to the givenoption with one finger (e.g., a user can touch the frame of the eyeweardevice 119 and drag the finger along the frame until a cursor identifiesa desired option). The user may keep that finger positioned and placedon the touch sensor for a threshold period of time without moving thefinger (e.g., for 2 seconds) to provide the touch and hold selection ofa given option from the first level. For example, the media contentplayback system 107 can detect that the finger remains positionedtouching a particular portion of the touch input interface for thethreshold period of time. In response, the media content playback system107 presents a second level of the hierarchy with a second set ofoptions corresponding to the given option.

In some cases, the second set of options includes multiple individualoptions that can be selected or a slider that enables sequentialadjustment of a parameter. As mentioned previously, the second set ofoptions may be presented in replacement of the first set of options oradjacent to the first set of options. While the media content playbacksystem 107 continues detecting contact with the user's finger afterproviding the touch and hold input, the media content playback system107 can detect a slide (swipe) of the finger across the touch sensor(e.g., left and right). As the finger is detected to be sliding orswiping, different respective ones of the options displayed as part ofthe second set of options are indicated for selection or the slider ismoved to new positions left/right corresponding to movement of thefinger across the display or touch sensor. When the option of the secondset of options is indicated for selection that is of interest to theuser, the media content playback system 107 can detect that the fingerhas been released or lifted from the touch input interface to cause theindicated option to be selected and to automatically return to the firstlevel of the hierarchy. In this way, the user can, with a combination ofgestures using a single finger touch (touch and hold, slide, andremoving or releasing the finger) navigate between levels of thehierarchy to select options of interest.

In some embodiments, the media content playback system 107 enables auser to quickly and easily navigate to a previous level of a hierarchyof levels and select an option in the previous level and then returnback to the original level of the hierarchy without lifting the user'sfinger from the touch sensor. As an example, a second level of ahierarchy of levels is presented in which the second set of options ispresented. The media content playback system 107 detects a two-fingertouch and hold input over a given option of the second set of options.For example, the user may touch an area of the touch sensorcorresponding to the given option with two fingers and may keep thosefingers positioned and placed on the touch sensor for a threshold periodof time without moving the fingers (e.g., for 2 seconds) to provide thetwo-finger touch and hold input. In response, the media content playbacksystem 107 returns to presenting and enabling navigation through thefirst level of the hierarchy with the first set of options. In somecases, the first set of options includes multiple individual optionsthat can be selected or a slider that enables sequential adjustment of aparameter. As mentioned previously, the first set of options may bepresented in replacement of the second set of options or adjacent to thesecond set of options. While the media content playback system 107continues detecting two fingers touching the touch input interface(e.g., without lifting the user's two-fingers) after determining thetwo-finger touch and hold input, the media content playback system 107can detect that the fingers are sliding or swiping across the display ortouch sensor (e.g., left and right). As the user slides (swipes) thetwo-fingers, different respective ones of the options displayed as partof the first set of options are indicated for selection or the slider ismoved to new positions left/right corresponding to movement of the twofingers across the display or touch sensor. When the option of the firstset of options is indicated for selection that is of interest to theuser, the media content playback system 107 can detect release of thetwo fingers to cause the indicated option to be selected.

A messaging client 104 is able to communicate and exchange data withother messaging clients 104, the eyewear device 119, and with themessaging server system 108 via the network 112. The data exchangedbetween messaging clients 104, and between a messaging client 104 andthe messaging server system 108, includes functions (e.g., commands toinvoke functions) as well as payload data (e.g., text, audio, video orother multimedia data).

The messaging server system 108 provides server-side functionality viathe network 112 to a particular messaging client 104. While certainfunctions of the messaging system 100 are described herein as beingperformed by either a messaging client 104 or by the messaging serversystem 108, the location of certain functionality either within themessaging client 104 or the messaging server system 108 may be a designchoice. For example, it may be technically preferable to initiallydeploy certain technology and functionality within the messaging serversystem 108 but to later migrate this technology and functionality to themessaging client 104 where a client device 102 has sufficient processingcapacity.

The messaging server system 108 supports various services and operationsthat are provided to the messaging client 104. Such operations includetransmitting data to, receiving data from, and processing data generatedby the messaging client 104. This data may include message content,client device information, geolocation information, media augmentationand overlays, message content persistence conditions, social networkinformation, and live event information, as examples. Data exchangeswithin the messaging system 100 are invoked and controlled throughfunctions available via user interfaces (UIs) of the messaging client104.

Turning now specifically to the messaging server system 108, anApplication Program Interface (API) server 116 is coupled to, andprovides a programmatic interface to, application servers 114. Theapplication servers 114 are communicatively coupled to a database server120, which facilitates access to a database 126 that stores dataassociated with messages processed by the application servers 114.Similarly, a web server 128 is coupled to the application servers 114,and provides web-based interfaces to the application servers 114. Tothis end, the web server 128 processes incoming network requests overthe Hypertext Transfer Protocol (HTTP) and several other relatedprotocols.

The Application Program Interface (API) server 116 receives andtransmits message data (e.g., commands and message payloads) between theclient device 102 and the application servers 114. Specifically, theApplication Program Interface (API) server 116 provides a set ofinterfaces (e.g., routines and protocols) that can be called or queriedby the messaging client 104 in order to invoke functionality of theapplication servers 114. The Application Program Interface (API) server116 exposes various functions supported by the application servers 114,including account registration, login functionality, the sending ofmessages, via the application servers 114, from a particular messagingclient 104 to another messaging client 104, the sending of media files(e.g., images or video) from a messaging client 104 to a messagingserver 118, and for possible access by another messaging client 104, thesettings of a collection of media data (e.g., story), the retrieval of alist of friends of a user of a client device 102, the retrieval of suchcollections, the retrieval of messages and content, the addition anddeletion of entities (e.g., friends) to an entity graph (e.g., a socialgraph), the location of friends within a social graph, and opening anapplication event (e.g., relating to the messaging client 104).

The application servers 114 host a number of server applications andsubsystems, including for example a messaging server 118, an imageprocessing server 122, and a social network server 124. The messagingserver 118 implements a number of message processing technologies andfunctions, particularly related to the aggregation and other processingof content (e.g., textual and multimedia content) included in messagesreceived from multiple instances of the messaging client 104. As will bedescribed in further detail, the text and media content from multiplesources may be aggregated into collections of content (e.g., calledstories or galleries). These collections are then made available to themessaging client 104. Other processor- and memory-intensive processingof data may also be performed server-side by the messaging server 118,in view of the hardware requirements for such processing.

The application servers 114 also include an image processing server 122that is dedicated to performing various image processing operations,typically with respect to images or video within the payload of amessage sent from or received at the messaging server 118.

Image processing server 122 is used to implement scan functionality ofthe augmentation system 208. Scan functionality includes activating andproviding one or more augmented reality experiences on a client device102 when an image is captured by the client device 102. Specifically,the messaging application 104 on the client device 102 can be used toactivate a camera. The camera displays one or more real-time images or avideo to a user along with one or more icons or identifiers of one ormore augmented reality experiences. The user can select a given one ofthe identifiers to launch the corresponding augmented realityexperience. Launching the augmented reality experience includesobtaining one or more augmented reality items associated with theaugmented reality experience and overlaying the augmented reality itemson top of the images or video being presented.

The social network server 124 supports various social networkingfunctions and services and makes these functions and services availableto the messaging server 118. To this end, the social network server 124maintains and accesses an entity graph 308 (as shown in FIG. 3) withinthe database 126. Examples of functions and services supported by thesocial network server 124 include the identification of other users ofthe messaging system 100 with which a particular user has relationshipsor is “following,” and also the identification of other entities andinterests of a particular user.

Returning to the messaging client 104, features and functions of anexternal resource (e.g., a third-party application 109 or applet) aremade available to a user via an interface of the messaging client 104.The messaging client 104 receives a user selection of an option tolaunch or access features of an external resource (e.g., a third-partyresource), such as external apps 109. The external resource may be athird-party application (external apps 109) installed on the clientdevice 102 (e.g., a “native app”), or a small-scale version of thethird-party application (e.g., an “applet”) that is hosted on the clientdevice 102 or remote of the client device 102 (e.g., on third-partyservers 110). The small-scale version of the third-party applicationincludes a subset of features and functions of the third-partyapplication (e.g., the full-scale, native version of the third-partystandalone application) and is implemented using a markup-languagedocument. In one example, the small-scale version of the third-partyapplication (e.g., an “applet”) is a web-based, markup-language versionof the third-party application and is embedded in the messaging client104. In addition to using markup-language documents (e.g., a .*ml file),an applet may incorporate a scripting language (e.g., a .*js file or a.json file) and a style sheet (e.g., a .*ss file).

In response to receiving a user selection of the option to launch oraccess features of the external resource (external app 109), themessaging client 104 determines whether the selected external resourceis a web-based external resource or a locally-installed externalapplication. In some cases, external applications 109 that are locallyinstalled on the client device 102 can be launched independently of andseparately from the messaging client 104, such as by selecting an icon,corresponding to the external application 109, on a home screen of theclient device 102. Small-scale versions of such external applicationscan be launched or accessed via the messaging client 104 and, in someexamples, no or limited portions of the small-scale external applicationcan be accessed outside of the messaging client 104. The small-scaleexternal application can be launched by the messaging client 104receiving, from a external app(s) server 110, a markup-language documentassociated with the small-scale external application and processing sucha document.

In response to determining that the external resource is alocally-installed external application 109, the messaging client 104instructs the client device 102 to launch the external application 109by executing locally-stored code corresponding to the externalapplication 109. In response to determining that the external resourceis a web-based resource, the messaging client 104 communicates with theexternal app(s) servers 110 to obtain a markup-language documentcorresponding to the selected resource. The messaging client 104 thenprocesses the obtained markup-language document to present the web-basedexternal resource within a user interface of the messaging client 104.

The messaging client 104 can notify a user of the client device 102, orother users related to such a user (e.g., “friends”), of activity takingplace in one or more external resources. For example, the messagingclient 104 can provide participants in a conversation (e.g., a chatsession) in the messaging client 104 with notifications relating to thecurrent or recent use of an external resource by one or more members ofa group of users. One or more users can be invited to join in an activeexternal resource or to launch a recently-used but currently inactive(in the group of friends) external resource. The external resource canprovide participants in a conversation, each using a respectivemessaging client messaging clients 104, with the ability to share anitem, status, state, or location in an external resource with one ormore members of a group of users into a chat session. The shared itemmay be an interactive chat card with which members of the chat caninteract, for example, to launch the corresponding external resource,view specific information within the external resource, or take themember of the chat to a specific location or state within the externalresource. Within a given external resource, response messages can besent to users on the messaging client 104. The external resource canselectively include different media items in the responses, based on acurrent context of the external resource.

The messaging client 104 can present a list of the available externalresources (e.g., third-party or external applications 109 or applets) toa user to launch or access a given external resource. This list can bepresented in a context-sensitive menu. For example, the iconsrepresenting different ones of the external application 109 (or applets)can vary based on how the menu is launched by the user (e.g., from aconversation interface or from a non-conversation interface).

System Architecture

FIG. 2 is a block diagram illustrating further details regarding themessaging system 100, according to some examples. Specifically, themessaging system 100 is shown to comprise the messaging client 104 andthe application servers 114. The messaging system 100 embodies a numberof subsystems, which are supported on the client side by the messagingclient 104 and on the sever side by the application servers 114. Thesesubsystems include, for example, an ephemeral timer system 202, acollection management system 204, an augmentation system 208, a mapsystem 210, a game system 212, and an external resource system 220.

The ephemeral timer system 202 is responsible for enforcing thetemporary or time-limited access to content by the messaging client 104and the messaging server 118. The ephemeral timer system 202incorporates a number of timers that, based on duration and displayparameters associated with a message, or collection of messages (e.g., astory), selectively enable access (e.g., for presentation and display)to messages and associated content via the messaging client 104. Furtherdetails regarding the operation of the ephemeral timer system 202 areprovided below.

The collection management system 204 is responsible for managing sets orcollections of media (e.g., collections of text, image video, and audiodata). A collection of content (e.g., messages, including images, video,text, and audio) may be organized into an “event gallery” or an “eventstory.” Such a collection may be made available for a specified timeperiod, such as the duration of an event to which the content relates.For example, content relating to a music concert may be made availableas a “story” for the duration of that music concert. The collectionmanagement system 204 may also be responsible for publishing an iconthat provides notification of the existence of a particular collectionto the user interface of the messaging client 104.

The collection management system 204 furthermore includes a curationinterface 206 that allows a collection manager to manage and curate aparticular collection of content. For example, the curation interface206 enables an event organizer to curate a collection of contentrelating to a specific event (e.g., delete inappropriate content orredundant messages). Additionally, the collection management system 204employs machine vision (or image recognition technology) and contentrules to automatically curate a content collection. In certain examples,compensation may be paid to a user for the inclusion of user-generatedcontent into a collection. In such cases, the collection managementsystem 204 operates to automatically make payments to such users for theuse of their content.

The augmentation system 208 provides various functions that enable auser to augment (e.g., annotate or otherwise modify or edit) mediacontent associated with a message. For example, the augmentation system208 provides functions related to the generation and publishing of mediaoverlays for messages processed by the messaging system 100. Theaugmentation system 208 operatively supplies a media overlay oraugmentation (e.g., an image filter) to the messaging client 104 basedon a geolocation of the client device 102. In another example, theaugmentation system 208 operatively supplies a media overlay to themessaging client 104 based on other information, such as social networkinformation of the user of the client device 102. A media overlay mayinclude audio and visual content and visual effects. Examples of audioand visual content include pictures, texts, logos, animations, and soundeffects. An example of a visual effect includes color overlaying. Theaudio and visual content or the visual effects can be applied to a mediacontent item (e.g., a photo) at the client device 102. For example, themedia overlay may include text, a graphical element, or image that canbe overlaid on top of a photograph taken by the client device 102. Inanother example, the media overlay includes an identification of alocation overlay (e.g., Venice beach), a name of a live event, or a nameof a merchant overlay (e.g., Beach Coffee House). In another example,the augmentation system 208 uses the geolocation of the client device102 to identify a media overlay that includes the name of a merchant atthe geolocation of the client device 102. The media overlay may includeother indicia associated with the merchant. The media overlays may bestored in the database 126 and accessed through the database server 120.

In some examples, the augmentation system 208 provides a user-basedpublication platform that enables users to select a geolocation on a mapand upload content associated with the selected geolocation. The usermay also specify circumstances under which a particular media overlayshould be offered to other users. The augmentation system 208 generatesa media overlay that includes the uploaded content and associates theuploaded content with the selected geolocation.

In other examples, the augmentation system 208 provides a merchant-basedpublication platform that enables merchants to select a particular mediaoverlay associated with a geolocation via a bidding process. Forexample, the augmentation system 208 associates the media overlay of thehighest bidding merchant with a corresponding geolocation for apredefined amount of time. The augmentation system 208 communicates withthe image processing server 122 to obtain augmented reality experiencesand presents identifiers of such experiences in one or more userinterfaces (e.g., as icons over a real-time image or video or asthumbnails or icons in interfaces dedicated for presented identifiers ofaugmented reality experiences). Once an augmented reality experience isselected, one or more images, videos, or augmented reality graphicalelements are retrieved and presented as an overlay on top of the imagesor video captured by the client device 102. In some cases, the camera isswitched to a front-facing view (e.g., the front-facing camera of theclient device 102 is activated in response to activation of a particularaugmented reality experience) and the images from the front-facingcamera of the client device 102 start being displayed on the clientdevice 102 instead of the rear-facing camera of the client device 102.The one or more images, videos, or augmented reality graphical elementsare retrieved and presented as an overlay on top of the images that arecaptured and displayed by the front-facing camera of the client device102.

The map system 210 provides various geographic location functions, andsupports the presentation of map-based media content and messages by themessaging client 104. For example, the map system 210 enables thedisplay of user icons or avatars (e.g., stored in profile data 316) on amap to indicate a current or past location of “friends” of a user, aswell as media content (e.g., collections of messages includingphotographs and videos) generated by such friends, within the context ofa map. For example, a message posted by a user to the messaging system100 from a specific geographic location may be displayed within thecontext of a map at that particular location to “friends” of a specificuser on a map interface of the messaging client 104. A user canfurthermore share his or her location and status information (e.g.,using an appropriate status avatar) with other users of the messagingsystem 100 via the messaging client 104, with this location and statusinformation being similarly displayed within the context of a mapinterface of the messaging client 104 to selected users.

The game system 212 provides various gaming functions within the contextof the messaging client 104. The messaging client 104 provides a gameinterface providing a list of available games (e.g., web-based games orweb-based applications) that can be launched by a user within thecontext of the messaging client 104, and played with other users of themessaging system 100. The messaging system 100 further enables aparticular user to invite other users to participate in the play of aspecific game, by issuing invitations to such other users from themessaging client 104. The messaging client 104 also supports both voiceand text messaging (e.g., chats) within the context of gameplay,provides a leaderboard for the games, and also supports the provision ofin-game rewards (e.g., coins and items).

The external resource system 220 provides an interface for the messagingclient 104 to communicate with external app(s) servers 110 to launch oraccess external resources. Each external resource (apps) server 110hosts, for example, a markup language (e.g., HTML5) based application orsmall-scale version of an external application (e.g., game, utility,payment, or ride-sharing application that is external to the messagingclient 104). The messaging client 104 may launch a web-based resource(e.g., application) by accessing the HTML5 file from the externalresource (apps) servers 110 associated with the web-based resource. Incertain examples, applications hosted by external resource servers 110are programmed in JavaScript leveraging a Software Development Kit (SDK)provided by the messaging server 118. The SDK includes ApplicationProgramming Interfaces (APIs) with functions that can be called orinvoked by the web-based application. In certain examples, the messagingserver 118 includes a JavaScript library that provides a giventhird-party resource access to certain user data of the messaging client104. HTML5 is used as an example technology for programming games, butapplications and resources programmed based on other technologies can beused.

In order to integrate the functions of the SDK into the web-basedresource, the SDK is downloaded by an external resource (apps) server110 from the messaging server 118 or is otherwise received by theexternal resource (apps) server 110. Once downloaded or received, theSDK is included as part of the application code of a web-based externalresource. The code of the web-based resource can then call or invokecertain functions of the SDK to integrate features of the messagingclient 104 into the web-based resource.

The SDK stored on the messaging server 118 effectively provides thebridge between an external resource (e.g., third-party or externalapplications 109 or applets and the messaging client 104). This providesthe user with a seamless experience of communicating with other users onthe messaging client 104, while also preserving the look and feel of themessaging client 104. To bridge communications between an externalresource and a messaging client 104, in certain examples, the SDKfacilitates communication between external resource servers 110 and themessaging client 104. In certain examples, a WebViewJavaScriptBridgerunning on a client device 102 establishes two one-way communicationchannels between a external resource and the messaging client 104.Messages are sent between the external resource and the messaging client104 via these communication channels asynchronously. Each SDK functioninvocation is sent as a message and callback. Each SDK function isimplemented by constructing a unique callback identifier and sending amessage with that callback identifier.

By using the SDK, not all information from the messaging client 104 isshared with external resource servers 110. The SDK limits whichinformation is shared based on the needs of the external resource. Incertain examples, each external resource server 110 provides an HTML5file corresponding to the web-based external resource to the messagingserver 118. The messaging server 118 can add a visual representation(such as a box art or other graphic) of the web-based external resourcein the messaging client 104. Once the user selects the visualrepresentation or instructs the messaging client 104 through a GUI ofthe messaging client 104 to access features of the web-based externalresource, the messaging client 104 obtains the HTML5 file andinstantiates the resources necessary to access the features of theweb-based external resource.

The messaging client 104 presents a graphical user interface (e.g., alanding page or title screen) for an external resource. During, before,or after presenting the landing page or title screen, the messagingclient 104 determines whether the launched external resource has beenpreviously authorized to access user data of the messaging client 104.In response to determining that the launched external resource has beenpreviously authorized to access user data of the messaging client 104,the messaging client 104 presents another graphical user interface ofthe external resource that includes functions and features of theexternal resource. In response to determining that the launched externalresource has not been previously authorized to access user data of themessaging client 104, after a threshold period of time (e.g., 3 seconds)of displaying the landing page or title screen of the external resource,the messaging client 104 slides up (e.g., animates a menu as surfacingfrom a bottom of the screen to a middle of or other portion of thescreen) a menu for authorizing the external resource to access the userdata. The menu identifies the type of user data that the externalresource will be authorized to use. In response to receiving a userselection of an accept option, the messaging client 104 adds theexternal resource to a list of authorized external resources and allowsthe external resource to access user data from the messaging client 104.In some examples, the external resource is authorized by the messagingclient 104 to access the user data in accordance with an OAuth 2framework.

The messaging client 104 controls the type of user data that is sharedwith external resources based on the type of external resource beingauthorized. For example, external resources that include full-scaleexternal applications (e.g., a third-party or external application 109)are provided with access to a first type of user data (e.g., onlytwo-dimensional avatars of users with or without different avatarcharacteristics). As another example, external resources that includesmall-scale versions of external applications (e.g., web-based versionsof third-party applications) are provided with access to a second typeof user data (e.g., payment information, two-dimensional avatars ofusers, three-dimensional avatars of users, and avatars with variousavatar characteristics). Avatar characteristics include different waysto customize a look and feel of an avatar, such as different poses,facial features, clothing, and so forth.

Data Architecture

FIG. 3 is a schematic diagram illustrating data structures 300, whichmay be stored in the database 126 of the messaging server system 108,according to certain examples. While the content of the database 126 isshown to comprise a number of tables, it will be appreciated that thedata could be stored in other types of data structures (e.g., as anobject-oriented database).

The database 126 includes message data stored within a message table302. This message data includes, for any particular one message, atleast message sender data, message recipient (or receiver) data, and apayload. Further details regarding information that may be included in amessage, and included within the message data stored in the messagetable 302, is described below with reference to FIG. 4.

An entity table 306 stores entity data, and is linked (e.g.,referentially) to an entity graph 308 and profile data 316. Entities forwhich records are maintained within the entity table 306 may includeindividuals, corporate entities, organizations, objects, places, events,and so forth. Regardless of entity type, any entity regarding which themessaging server system 108 stores data may be a recognized entity. Eachentity is provided with a unique identifier, as well as an entity typeidentifier (not shown).

The entity graph 308 stores information regarding relationships andassociations between entities. Such relationships may be social,professional (e.g., work at a common corporation or organization)interested-based or activity-based, merely for example.

The profile data 316 stores multiple types of profile data about aparticular entity. The profile data 316 may be selectively used andpresented to other users of the messaging system 100, based on privacysettings specified by a particular entity. Where the entity is anindividual, the profile data 316 includes, for example, a user name,telephone number, address, settings (e.g., notification and privacysettings), as well as a user-selected avatar representation (orcollection of such avatar representations). A particular user may thenselectively include one or more of these avatar representations withinthe content of messages communicated via the messaging system 100, andon map interfaces displayed by messaging clients 104 to other users. Thecollection of avatar representations may include “status avatars,” whichpresent a graphical representation of a status or activity that the usermay select to communicate at a particular time.

Where the entity is a group, the profile data 316 for the group maysimilarly include one or more avatar representations associated with thegroup, in addition to the group name, members, and various settings(e.g., notifications) for the relevant group.

The database 126 also stores augmentation data, such as overlays orfilters, in an augmentation table 310. The augmentation data isassociated with and applied to videos (for which data is stored in avideo table 304) and images (for which data is stored in an image table312).

Filters, in one example, are overlays that are displayed as overlaid onan image or video during presentation to a recipient user. Filters maybe of various types, including user-selected filters from a set offilters presented to a sending user by the messaging client 104 when thesending user is composing a message. Other types of filters includegeolocation filters (also known as geo-filters), which may be presentedto a sending user based on geographic location. For example, geolocationfilters specific to a neighborhood or special location may be presentedwithin a user interface by the messaging client 104, based ongeolocation information determined by a Global Positioning System (GPS)unit of the client device 102.

Another type of filter is a data filter, which may be selectivelypresented to a sending user by the messaging client 104, based on otherinputs or information gathered by the client device 102 during themessage creation process. Examples of data filters include currenttemperature at a specific location, a current speed at which a sendinguser is traveling, battery life for a client device 102, or the currenttime.

Other augmentation data that may be stored within the image table 312includes augmented reality content items (e.g., corresponding toapplying augmented reality experiences). An augmented reality contentitem or augmented reality item may be a real-time special effect andsound that may be added to an image or a video.

As described above, augmentation data includes augmented reality contentitems, overlays, image transformations, AR images, and similar termsthat refer to modifications that may be applied to image data (e.g.,videos or images). This includes real-time modifications, which modifyan image as it is captured using device sensors (e.g., one or multiplecameras) of a client device 102 and then displayed on a screen of theclient device 102 with the modifications. This also includesmodifications to stored content, such as video clips in a gallery thatmay be modified. For example, in a client device 102 with access tomultiple augmented reality content items, a user can use a single videoclip with multiple augmented reality content items to see how thedifferent augmented reality content items will modify the stored clip.For example, multiple augmented reality content items that applydifferent pseudorandom movement models can be applied to the samecontent by selecting different augmented reality content items for thecontent. Similarly, real-time video capture may be used with anillustrated modification to show how video images currently beingcaptured by sensors of a client device 102 would modify the captureddata. Such data may simply be displayed on the screen and not stored inmemory, or the content captured by the device sensors may be recordedand stored in memory with or without the modifications (or both). Insome systems, a preview feature can show how different augmented realitycontent items will look within different windows in a display at thesame time. This can, for example, enable multiple windows with differentpseudorandom animations to be viewed on a display at the same time.

Data and various systems using augmented reality content items or othersuch transform systems to modify content using this data can thusinvolve detection of objects (e.g., faces, hands, bodies, cats, dogs,surfaces, objects, etc.), tracking of such objects as they leave, enter,and move around the field of view in video frames, and the modificationor transformation of such objects as they are tracked. In variousexamples, different methods for achieving such transformations may beused. Some examples may involve generating a three-dimensional meshmodel of the object or objects, and using transformations and animatedtextures of the model within the video to achieve the transformation. Inother examples, tracking of points on an object may be used to place animage or texture (which may be two dimensional or three dimensional) atthe tracked position. In still further examples, neural network analysisof video frames may be used to place images, models, or textures incontent (e.g., images or frames of video). Augmented reality contentitems thus refer both to the images, models, and textures used to createtransformations in content, as well as to additional modeling andanalysis information needed to achieve such transformations with objectdetection, tracking, and placement.

Real-time video processing can be performed with any kind of video data(e.g., video streams, video files, etc.) saved in a memory of acomputerized system of any kind. For example, a user can load videofiles and save them in a memory of a device, or can generate a videostream using sensors of the device. Additionally, any objects can beprocessed using a computer animation model, such as a human's face andparts of a human body, animals, or non-living things such as chairs,cars, or other objects.

In some examples, when a particular modification is selected along withcontent to be transformed, elements to be transformed are identified bythe computing device, and then detected and tracked if they are presentin the frames of the video. The elements of the object are modifiedaccording to the request for modification, thus transforming the framesof the video stream. Transformation of frames of a video stream can beperformed by different methods for different kinds of transformation.For example, for transformations of frames mostly referring to changingforms of object's elements, characteristic points for each element of anobject are calculated (e.g., using an Active Shape Model (ASM) or otherknown methods). Then, a mesh based on the characteristic points isgenerated for each of the at least one element of the object. This meshis used in the following stage of tracking the elements of the object inthe video stream. In the process of tracking, the mentioned mesh foreach element is aligned with a position of each element. Then,additional points are generated on the mesh. A first set of first pointsis generated for each element based on a request for modification, and aset of second points is generated for each element based on the set offirst points and the request for modification. Then, the frames of thevideo stream can be transformed by modifying the elements of the objecton the basis of the sets of first and second points and the mesh. Insuch method, a background of the modified object can be changed ordistorted as well by tracking and modifying the background.

In some examples, transformations changing some areas of an object usingits elements can be performed by calculating characteristic points foreach element of an object and generating a mesh based on the calculatedcharacteristic points. Points are generated on the mesh, and thenvarious areas based on the points are generated. The elements of theobject are then tracked by aligning the area for each element with aposition for each of the at least one element, and properties of theareas can be modified based on the request for modification, thustransforming the frames of the video stream. Depending on the specificrequest for modification, properties of the mentioned areas can betransformed in different ways. Such modifications may involve changingcolor of areas; removing at least some part of areas from the frames ofthe video stream; including one or more new objects into areas which arebased on a request for modification; and modifying or distorting theelements of an area or object. In various examples, any combination ofsuch modifications or other similar modifications may be used. Forcertain models to be animated, some characteristic points can beselected as control points to be used in determining the entirestate-space of options for the model animation.

In some examples of a computer animation model to transform image datausing face detection, the face is detected on an image with use of aspecific face detection algorithm (e.g., Viola-Jones). Then, an ActiveShape Model (ASM) algorithm is applied to the face region of an image todetect facial feature reference points.

Other methods and algorithms suitable for face detection can be used.For example, in some examples, features are located using a landmark,which represents a distinguishable point present in most of the imagesunder consideration. For facial landmarks, for example, the location ofthe left eye pupil may be used. If an initial landmark is notidentifiable (e.g., if a person has an eyepatch), secondary landmarksmay be used. Such landmark identification procedures may be used for anysuch objects. In some examples, a set of landmarks forms a shape. Shapescan be represented as vectors using the coordinates of the points in theshape. One shape is aligned to another with a similarity transform(allowing translation, scaling, and rotation) that minimizes the averageEuclidean distance between shape points. The mean shape is the mean ofthe aligned training shapes.

In some examples, a search for landmarks from the mean shape aligned tothe position and size of the face determined by a global face detectoris started. Such a search then repeats the steps of suggesting atentative shape by adjusting the locations of shape points by templatematching of the image texture around each point and then conforming thetentative shape to a global shape model until convergence occurs. Insome systems, individual template matches are unreliable, and the shapemodel pools the results of the weak template matches to form a strongeroverall classifier. The entire search is repeated at each level in animage pyramid, from coarse to fine resolution.

A transformation system can capture an image or video stream on a clientdevice (e.g., the client device 102) and perform complex imagemanipulations locally on the client device 102 while maintaining asuitable user experience, computation time, and power consumption. Thecomplex image manipulations may include size and shape changes, emotiontransfers (e.g., changing a face from a frown to a smile), statetransfers (e.g., aging a subject, reducing apparent age, changinggender), style transfers, graphical element application, and any othersuitable image or video manipulation implemented by a convolutionalneural network that has been configured to execute efficiently on theclient device 102.

In some examples, a computer animation model to transform image data canbe used by a system where a user may capture an image or video stream ofthe user (e.g., a selfie) using a client device 102 having a neuralnetwork operating as part of a messaging client 104 operating on theclient device 102. The transformation system operating within themessaging client 104 determines the presence of a face within the imageor video stream and provides modification icons associated with acomputer animation model to transform image data, or the computeranimation model can be present as associated with an interface describedherein. The modification icons include changes that may be the basis formodifying the user's face within the image or video stream as part ofthe modification operation. Once a modification icon is selected, thetransformation system initiates a process to convert the image of theuser to reflect the selected modification icon (e.g., generate a smilingface on the user). A modified image or video stream may be presented ina graphical user interface displayed on the client device 102 as soon asthe image or video stream is captured, and a specified modification isselected. The transformation system may implement a complexconvolutional neural network on a portion of the image or video streamto generate and apply the selected modification. That is, the user maycapture the image or video stream and be presented with a modifiedresult in real-time or near real-time once a modification icon has beenselected. Further, the modification may be persistent while the videostream is being captured, and the selected modification icon remainstoggled. Machine-taught neural networks may be used to enable suchmodifications.

The graphical user interface, presenting the modification performed bythe transformation system, may supply the user with additionalinteraction options. Such options may be based on the interface used toinitiate the content capture and selection of a particular computeranimation model (e.g., initiation from a content creator userinterface). In various examples, a modification may be persistent afteran initial selection of a modification icon. The user may toggle themodification on or off by tapping or otherwise selecting the face beingmodified by the transformation system and store it for later viewing orbrowse to other areas of the imaging application. Where multiple facesare modified by the transformation system, the user may toggle themodification on or off globally by tapping or selecting a single facemodified and displayed within a graphical user interface. In someexamples, individual faces, among a group of multiple faces, may beindividually modified, or such modifications may be individually toggledby tapping or selecting the individual face or a series of individualfaces displayed within the graphical user interface.

A story table 314 stores data regarding collections of messages andassociated image, video, or audio data, which are compiled into acollection (e.g., a story or a gallery). The creation of a particularcollection may be initiated by a particular user (e.g., each user forwhich a record is maintained in the entity table 306). A user may createa “personal story” in the form of a collection of content that has beencreated and sent/broadcast by that user. To this end, the user interfaceof the messaging client 104 may include an icon that is user-selectableto enable a sending user to add specific content to his or her personalstory.

A collection may also constitute a “live story,” which is a collectionof content from multiple users that is created manually, automatically,or using a combination of manual and automatic techniques. For example,a “live story” may constitute a curated stream of user-submitted contentfrom various locations and events. Users whose client devices havelocation services enabled and are at a common location event at aparticular time may, for example, be presented with an option, via auser interface of the messaging client 104, to contribute content to aparticular live story. The live story may be identified to the user bythe messaging client 104, based on his or her location. The end resultis a “live story” told from a community perspective.

A further type of content collection is known as a “location story,”which enables a user whose client device 102 is located within aspecific geographic location (e.g., on a college or university campus)to contribute to a particular collection. In some examples, acontribution to a location story may require a second degree ofauthentication to verify that the end user belongs to a specificorganization or other entity (e.g., is a student on the universitycampus).

As mentioned above, the video table 304 stores video data that, in oneexample, is associated with messages for which records are maintainedwithin the message table 302. Similarly, the image table 312 storesimage data associated with messages for which message data is stored inthe entity table 306. The entity table 306 may associate variousaugmentations from the augmentation table 310 with various images andvideos stored in the image table 312 and the video table 304.

Data Communications Architecture

FIG. 4 is a schematic diagram illustrating a structure of a message 400,according to some examples, generated by a messaging client 104 forcommunication to a further messaging client 104 or the messaging server118. The content of a particular message 400 is used to populate themessage table 302 stored within the database 126, accessible by themessaging server 118. Similarly, the content of a message 400 is storedin memory as “in-transit” or “in-flight” data of the client device 102or the application servers 114. A message 400 is shown to include thefollowing example components:

-   -   message identifier 402: a unique identifier that identifies the        message 400.    -   message text payload 404: text, to be generated by a user via a        user interface of the client device 102, and that is included in        the message 400.    -   message image payload 406: image data, captured by a camera        component of a client device 102 or retrieved from a memory        component of a client device 102, and that is included in the        message 400. Image data for a sent or received message 400 may        be stored in the image table 312.    -   message video payload 408: video data, captured by a camera        component or retrieved from a memory component of the client        device 102, and that is included in the message 400. Video data        for a sent or received message 400 may be stored in the video        table 304.    -   message audio payload 410: audio data, captured by a microphone        or retrieved from a memory component of the client device 102,        and that is included in the message 400.    -   message augmentation data 412: augmentation data (e.g., filters,        stickers, or other annotations or enhancements) that represents        augmentations to be applied to message image payload 406,        message video payload 408, or message audio payload 410 of the        message 400. Augmentation data for a sent or received message        400 may be stored in the augmentation table 310.    -   message duration parameter 414: parameter value indicating, in        seconds, the amount of time for which content of the message        (e.g., the message image payload 406, message video payload 408,        message audio payload 410) is to be presented or made accessible        to a user via the messaging client 104.    -   message geolocation parameter 416: geolocation data (e.g.,        latitudinal and longitudinal coordinates) associated with the        content payload of the message. Multiple message geolocation        parameter 416 values may be included in the payload, each of        these parameter values being associated with respect to content        items included in the content (e.g., a specific image within the        message image payload 406, or a specific video in the message        video payload 408).    -   message story identifier 418: identifier values identifying one        or more content collections (e.g., “stories” identified in the        story table 314) with which a particular content item in the        message image payload 406 of the message 400 is associated. For        example, multiple images within the message image payload 406        may each be associated with multiple content collections using        identifier values.    -   message tag 420: each message 400 may be tagged with multiple        tags, each of which is indicative of the subject matter of        content included in the message payload. For example, where a        particular image included in the message image payload 406        depicts an animal (e.g., a lion), a tag value may be included        within the message tag 420 that is indicative of the relevant        animal. Tag values may be generated manually, based on user        input, or may be automatically generated using, for example,        image recognition.    -   message sender identifier 422: an identifier (e.g., a messaging        system identifier, email address, or device identifier)        indicative of a user of the client device 102 on which the        message 400 was generated and from which the message 400 was        sent.    -   message receiver identifier 424: an identifier (e.g., a        messaging system identifier, email address, or device        identifier) indicative of a user of the client device 102 to        which the message 400 is addressed.

The contents (e.g., values) of the various components of message 400 maybe pointers to locations in tables within which content data values arestored. For example, an image value in the message image payload 406 maybe a pointer to (or address of) a location within an image table 312.Similarly, values within the message video payload 408 may point to datastored within a video table 304, values stored within the messageaugmentation data 412 may point to data stored in an augmentation table310, values stored within the message story identifier 418 may point todata stored in a story table 314, and values stored within the messagesender identifier 422 and the message receiver identifier 424 may pointto user records stored within an entity table 306.

Eyewear Device

FIG. 5 shows a front perspective view of an eyewear device 119 in theform of a pair of smart glasses that include a media content playbacksystem 107 according to one example embodiment. The eyewear device 119includes a body 503 comprising a front piece or frame 506 and a pair oftemples 509 connected to the frame 506 for supporting the frame 506 inposition on a user's face when the eyewear device 119 is worn. The frame506 can be made from any suitable material such as plastics or metal,including any suitable shape memory alloy. The frame 506 can include atouch input interface that is configured to receive touch input from auser (e.g., one finger touch, two finger touch, or combination thereoftogether with dragging the finger(s) along the frame 506).

The eyewear device 119 includes a pair of optical elements in the formof a pair of lenses 512 held by corresponding optical element holders inthe form of a pair of rims 515 forming part of the frame 506. The rims515 are connected by a bridge 518. In other embodiments, one or both ofthe optical elements can be a display, a display assembly, or a lens anddisplay combination.

The frame 506 includes a pair of end pieces 521 defining lateral endportions of the frame 506. In this example, a variety of electronicscomponents are housed in one or both of the end pieces 521. The temples509 are coupled to the respective end pieces 521. In this example, thetemples 509 are coupled to the frame 506 by respective hinges so as tobe hingedly movable between a wearable mode and a collapsed mode inwhich the temples 509 are pivoted towards the frame 506 to liesubstantially flat against it. In other embodiments, the temples 509 canbe coupled to the frame 506 by any suitable means, or can be rigidly orfixedly secured to the frame 506 so as to be integral therewith.

Each of the temples 509 that includes a front portion of that is coupledto the frame 506 and any suitable rear portion for coupling to the earof the user, such as the curves or cute piece illustrated in the exampleembodiment of FIG. 5. In some embodiments, the frame 506 is formed of asingle piece of material, so as to have a unitary or monolithicconstruction. In some embodiments, the whole of the body 503 (includingboth the frame 506 and the temples 509) can be of the unitary ormonolithic construction.

The eyewear device 119 has onboard electronics components including acomputing device, such as a computer 524, or low power processor, whichcan in different embodiments be of any suitable type so as to be carriedby the body 503. In some embodiments, the computer 524 is at leastpartially housed in one or both of the temples 509. In the presentembodiment, various components of the computer 524 are housed in thelateral end pieces 521 of the frame 506. The computer 524 includes oneor more processors with memory (e.g., a volatile storage device, such asrandom access memory or registers), a storage device (e.g., anon-volatile storage device), wireless communication circuitry (e.g.,BLE communication devices and/or WiFi direct devices), and a powersource. The computer 524 comprises low-power circuitry, high-speedcircuitry, and, in some embodiments, a display processor. Variousembodiments may include these elements in different configurations orintegrated together in different ways.

The computer 524 additionally includes a battery 527 or other suitableportable power supply. In one embodiment, the battery 527 is disposed inone of the temples 509. In the eyewear device 119 shown in FIG. 5, thebattery 527 is shown as being disposed in one of the end pieces 521,being electrically coupled to the remainder of the computer 524 housedin the corresponding end piece 521.

The eyewear device 119 is camera-enabled, in this example comprising acamera 530 mounted in one of the end pieces 521 and facing forwards soas to be aligned more or less with the direction of view of a wearer ofthe eyewear device 119. The camera 530 is configured to capture digitalimages (also referred to herein as digital photographs or pictures) aswell as digital video content. Operation of the camera 530 is controlledby a camera controller provided by the computer 524, image datarepresentative of images or video captured by the camera 530 beingtemporarily stored on a memory forming part of the computer 524. In someembodiments, the eyewear device 119 can have a pair of cameras 530, e.g.housed by the respective end pieces 521.

The onboard computer 524 and the lenses 512 are configured together toprovide a media content playback system 107 that automatically andselectively allows a user to navigate through a menu hierarchy to selectbetween various media playback options. Specifically, the lenses 512 candisplay virtual content, such as a video or audio player together withone or more options related to playback of the video and/or audio. Thismakes it appear to the user that the virtual content is integratedwithin a real-world environment that the user views through the lenses512. In some embodiments, the virtual content is received from theclient device 102. In some embodiments, the virtual content is receiveddirectly from the application servers 114.

The eyewear device 119 includes an accelerometer and a touch interfaceand a voice command system. The touch interface can be integrated withina portion of the frame 506 (e.g., within one or both of lateral endpieces 521). Based on input received by the eyewear device 119 from theaccelerometer and a touch interface and the voice command system, theeyewear device 119 can control user interaction with the virtualcontent. In one example, the user interaction can control playback ofcontent that is presented on the lenses 512. In another example, theuser interaction can navigate through a playlist or music or videolibrary. In another example, the user interaction can navigate through aconversation the user is involved in, such as by scrolling throughvarious chat bubbles and selecting individual chat bubbles to respond togenerate messages to transmit to participants of the conversation.

The touch interface is configured to determine whether one finger or twofingers are touching the eyewear device 119. In response to detectingthat a single finger has touched the eyewear device 119, the mediacontent playback system 107 displays a cursor over the playback controloptions (options that include volume control, playback position control,series control, and so forth). The user can slide the finger along theframe 506 to move the position of the cursor to highlight differentoptions of the playback control menu. When the cursor is positioned overa given option for a threshold period of time (e.g., 3 seconds) andwhile the media content playback system 107 detects continuous contactbetween the finger and the touch interface (e.g., without the userreleasing the finger from the frame 506), the media content playbacksystem 107 selects the option and accesses a level of the playbackcontrol menu associated with the given option. For example, the givenoption may be a volume control option. In such cases, the media contentplayback system 107 displays a slider for changing the volume of thecontent being played back when the cursor is positioned over the volumecontrol option for a threshold period of time. The media contentplayback system 107 detects the finger dragging along the frame 506 tomove the slider to change the volume. When the media content playbacksystem 107 detects release of the finger, the volume is set by the lastposition of the slider and the slider is removed from the display.

As another example, the given option may be a series control option. Insuch cases, the media content playback system 107 displays a set ofseries identifiers when the series control option is highlighted for athreshold period of time (e.g., 3 seconds). The media content playbacksystem 107 detects drag of the finger along the frame 506 to move acursor to highlight different series identifiers. When a seriesidentifier is highlighted by the cursor for a threshold period of timeand without the media content playback system 107 detecting release ofthe finger from the frame 506, a set of episodes associated with thehighlighted series identifier are presented. The media content playbacksystem 107 detects that the finger is dragged along the frame 506 tomove a cursor to highlight different episode identifiers. When anepisode identifier is highlighted by the cursor for a threshold periodof time or when the media content playback system 107 detects therelease of the finger from the frame 506 after the cursor is moved overa desired episode identifier, the episode associated with the episodeidentifier is retrieved and played back in the video player of theeyewear device 119 for display in the lenses.

In some cases, the user may not be interested in any of the episodesthat are displayed by the episode identifiers. Because releasing thefinger causes the media content playback system 107 to playback acurrent episode being highlighted, the media content playback system 107can detect that the user adds a finger so that two fingers are detectedas touching the frame 506. This instructs the media content playbacksystem 107 to navigate back to a previous level of the hierarchy. Forexample, the media content playback system 107 can detect that a secondfinger has made contact with the touch interface of the eyewear device110. In response, the media content playback system 107 redisplays theseries identifiers. The eyewear device 119 can continue to detect thattwo fingers are touching the frame 506 and that the two fingers arebeing dragged along the frame 506. In response the media contentplayback system 107 moves the cursor to highlight a different seriesidentifier. When that different series identifier is highlighted for athreshold period of time, the media content playback system 107 displaysepisode identifiers associated with the different series identifier forthe user to enable the user to navigate through and select in responseto the eyewear device 110 detecting movement of the two fingers whichare in contact with the touch input interface. Namely, when the mediacontent playback system 107 detects that the two fingers have beenreleased and are no longer in contact physically with the touch inputinterface after being used to move the cursor to highlight a givenepisode identifier, the corresponding episode is retrieved and displayedon the lenses of the eyewear device 119.

In some embodiments, the eyewear device 119 detects that the finger iscontinuously in contact with and touching the frame 506 throughoutselection and navigation through the playback control menu. The fingeris continuously in contact with the frame 506 while different levels ofthe playback control menu is navigated. For example, the eyewear device119 detects that the finger is not released from the frame 506 frominitial contact while the user navigates through volume control and/orseries or episode selection. In one case, after adjusting the volumeusing the single finger, the eyewear device 119 detects that the userdoes not release the finger and allows navigation to the series controloption. For example, after the volume slider is presented, the user candrag the finger to a desired volume. Then, the user can add a secondfinger to cause the initial menu of the playback menu control to bedisplayed that includes the volume control and the series controloptions. The user can now, with the two fingers, drag the cursor toselect the series control option by maintaining the cursor at the seriescontrol option position for a threshold period of time. In response, theseries identifiers are presented and can be navigated through bydragging the two fingers along the frame 506 until a series identifierof interest is found.

The eyewear device 119 further includes one or more communicationdevices, such as Bluetooth low energy (BLE) communication interface.Such BLE communication interface enables the eyewear device 119 tocommunicate wirelessly with the client device 102. Other forms ofwireless communication can also be employed instead of, or in additionto, the BLE communication interface, such as a WiFi direct interface.The BLE communication interface implements a standard number of BLEcommunication protocols.

A first of the communications protocols implemented by the BLE interfaceof the eyewear device 119 enables an unencrypted link to be establishedbetween the eyewear device 119 and the client device 102. In this firstprotocol, the link-layer communication (the physical interface ormedium) between the eyewear device 119 and the client device 102includes unencrypted data. In this first protocol, the application layer(the communication layer operating on the physically exchanged data)encrypts and decrypts data that is physically exchanged in unencryptedform over the link layer of the BLE communication interface. In thisway, data exchanged over the physical layer can freely be read by aneavesdropping device, but the eavesdropping device will not be able todecipher the data that is exchanged without performing a decryptionoperation in the application layer.

A second of the communications protocols implemented by the BLEinterface of the eyewear device 119 enables an encrypted link to beestablished between the eyewear device 119 and the client device 102. Inthis second protocol, the link-layer communication (the physicalinterface) between the eyewear device 119 and the client device 102receives data from the application layer and adds a first type ofencryption to the data before exchanging the data over the physicalmedium. In this second protocol, the application layer (thecommunication layer operating on the physically exchanged data) may ormay not use a second type of encryption to encrypt and decrypt data thatis physically exchanged in encrypted form, using the first type ofencryption, over the link layer of the BLE communication interface.Namely, data can be first encrypted by the application layer and then befurther encrypted by the physical layer before being exchanged over thephysical medium. Following the exchange over the physical medium, thedata is then decrypted by the physical layer and then decrypted again(e.g., using a different type of encryption) by the application layer.In this way, data exchanged over the physical layer cannot be read by aneavesdropping device as the data is encrypted in the physical medium.

In some embodiments, the client device 102 communicates with the eyeweardevice 119 using the first protocol to exchange images or videos orvirtual content between the messaging client 104 and the eyewear device119.

Media Content Playback System

FIG. 6 is a flowchart illustrating example operations of the mediacontent playback system 107 in performing a process 600, according toexample embodiments. The process 600 may be embodied incomputer-readable instructions for execution by one or more processorssuch that the operations of the process 600 may be performed in part orin whole by the functional components of the notification managementsystem 107, accordingly, the process 600 is described below by way ofexample with reference thereto. However, in other embodiments, at leastsome of the operations of the process 600 may be deployed on variousother hardware configurations. The process 600 is therefore not intendedto be limited to the media content playback system 107 and can beimplemented in whole, or in part, by any other component. Some or all ofthe operations of process 600 can be in parallel, out of order, orentirely omitted.

At operation 601, the media content playback system 107 displays, by oneor more processors of the eyewear device 119, a plurality of mediacontent control options, as explained above

At operation 602, the media content playback system 107 detects, by atouch input interface of the eyewear device, a first touch inputcomprising a single finger touching the touch input interface, as alsoexplained above. In response to the detection of the first touch input,the media content playback system 107 causes navigation of a cursorthrough the plurality of media content control options that tracks thefirst touch input to allow selection of a first media content controloption of the plurality of media content control options.

At operation 604, the media content playback system 107 detects that thesingle finger is continuously touching the touch input interfaceindicating a selection of the first media content control option. Inresponse to the detection, the content playback system 107 displays asecond media content control option related to the first media contentcontrol option.

At operation 605, the media content playback system 107 detects aselection associated with the second media content control option basedon detecting movement of the single finger along the touch inputinterface. In response to the detection, the media content playbacksystem 107 performs a media content playback control operationcorresponding to the second media content control option (e.g., themedia content playback system 107 changes a play position or adjustsvolume of content being played back).

FIGS. 7-9 are illustrative screens of a graphical user interface of themedia content playback system 107 according to example embodiments. Thescreens shown in FIGS. 7-9 may be provided by the messaging client 104of one or more client devices 102, other applications implemented on oneor more client devices 102, or the eyewear device 119.

FIG. 7 shows a user interface 700 of the media content playback system107. The user interface 700 includes a real-world environment 701 thatthe user sees through the lenses of the eyewear device 119. A mediacontent player 702 is presented which includes one or more virtualobjects. For example, the media content player 702 includes a videoplayback region option in which video and/or audio of content ispresented to the user. The media content player includes a plurality ofoptions 703 that include playback control options (e.g., volume control,series control, playback position control, and so forth).

In one embodiment, the user touches the eyewear device 119 at a touchinput interface, such as on a frame 506 of the eyewear device 119. Forexample, the user can place a single finger on the touch inputinterface. In response, to detecting the single finger on the touchinput interface, the media content playback system 107 presents a cursorwithin the plurality of options 703. The media content playback system107 detects that the finger has been dragged along the touch inputinterface and in response the cursor is moved according to the directionof movement of the finger to highlight a desired option. As an example,the user can move the cursor to highlight a volume option 704. If mediacontent playback system 107 determines that the cursor has remainedpositioned over the volume option 704 for a threshold period of time(e.g., 3 seconds), the media content playback system 107 presents a userinterface 800 (FIG. 8) to allow the user to change or control thevolume.

Specifically, as shown in user interface 800, the video playback regionis expanded and a slider 804 is presented. The user can move the fingeralong the touch input interface to change the position of the slider toincrease or decrease the volume of the content being played back. Oncethe desired volume is reached, the user can release the finger from thetouch input interface. In response, the media content playback system107 returns the user back to the user interface 700 in which theplurality of options 703 are presented. In some cases, while the userinterface 800 is presented, the user may desire to return back to theinterface 700 in which the plurality of options 703 are presented. Inthis case, after setting the desired volume by maintaining the slider ata given position for a threshold period of time, the user can add asecond finger to the touch input interface. At this point, the touchinput interface detects two fingers touching the touch input interface.In response, the media content playback system 107 returns the user backto the interface 700 in which the plurality of options 703 are presentedafter setting the volume using the single finger. The user can drag thetwo fingers along the touch input interface to move the cursor to selecta different one of the plurality of options 703. For example, the usercan move the cursor to highlight a series control option 705. Withoutthe user releasing the two fingers from the touch input interface, themedia content playback system 107 can determine that the cursor hasremained positioned over the series control option 705 for a thresholdperiod of time (e.g., 3 seconds). If so, the media content playbacksystem 107 presents user interface 900 (FIG. 9) to allow the user toselect a series and episode using a two finger touch.

As another example, the user can touch the touch input interface with asingle finger and drag a cursor to highlight the series control option705. In response to detecting that the single finger has made contactwith the touch interface of the eyewear device 119 and has been draggedalong the touch interface, the media content playback system 107navigates the cursor to a desired position. The media content playbacksystem 107 can determine that the cursor has remained positioned overthe series control option 705 for a threshold period of time (e.g., 3seconds). If so, the media content playback system 107 presents a userinterface 900 (FIG. 9) to allow the user to select a series identifierfrom a plurality of series identifiers.

Specifically, as shown in user interface 900, the video playback regionis removed and a plurality of series identifiers 901 are presented. Themedia content playback system 107 determines that the finger makingcontact with the touch interface has been moved along the touch inputinterface to change a position of a cursor to select a given seriesidentifier from the series identifiers 901. As another example, if theuser interface 900 was reached based on a two finger touch, the mediacontent playback system 107 detects that two fingers are being movedalong the touch input interface to change a position of a cursor toselect a given series identifier from the series identifiers 901. Oncethe desired series identifier is selected (e.g., by maintaining thecursor positioned over the desired series identifier for a thresholdperiod of time), the media content playback system 107 presents aplurality of episode identifiers to allow the user to select an episodeidentifier of the desired series. The media content playback system 107can detect movement of the finger (or two fingers depending on how themenu level is reached) along the touch input interface to change aposition of a cursor to select a given episode identifier. The mediacontent playback system 107 can detect that the finger(s) have beenreleased from the touch input interface when a desired episodeidentifier is highlighted. In response, the media content playbacksystem 107 accesses the episode corresponding to the highlighted episodeidentifier, plays back the episode in the lenses of the eyewear deviceand returns the user back to the user interface 700 in which theplurality of options 703 are presented.

In some cases, while the user interface 900 is presented in response toa single finger touch, the user may desire to not select a seriesidentifier and return back to the interface 700 in which the pluralityof options 703 are presented. In this case, the media content playbacksystem 107 detects that a second finger has made contact with the touchinput interface. At this point, the touch input interface detects twofingers touching the touch input interface. In response, the mediacontent playback system 107 returns the user back to the interface 700in which the plurality of options 703 are presented without selectingany particular series identifier. The media content playback system 107detects that the two fingers have been dragged along the touch inputinterface to move the cursor to select a different one of the pluralityof options 703. For example, the user can move the cursor to highlight aseek or play position option. Prior to detecting that the fingers havebeen released from the touch input interface, the media content playbacksystem 107 can determine that the cursor has remained positioned overthe seek or play position option for a threshold period of time (e.g., 3seconds). If so, the media content playback system 107 presents a userinterface similar to that shown in FIG. 8 to allow the user to changethe playback position.

Specifically, the media content playback system 107 can detect movementof two fingers along the touch input interface. In response, the mediacontent playback system 107 changes the position of the slider toadvance or rewind the play position of the content being played back.Once the desired play position is reached, the media content playbacksystem 107 can detect that the two fingers have been releases from thetouch input interface. In response, the media content playback system107 returns the user back to the user interface 700 in which theplurality of options 703 are presented and plays back the content fromthe desired play position.

Machine Architecture

FIG. 10 is a diagrammatic representation of the machine 1000 withinwhich instructions 1008 (e.g., software, a program, an application, anapplet, an app, or other executable code) for causing the machine 1000to perform any one or more of the methodologies discussed herein may beexecuted. For example, the instructions 1008 may cause the machine 1000to execute any one or more of the methods described herein. Theinstructions 1008 transform the general, non-programmed machine 1000into a particular machine 1000 programmed to carry out the described andillustrated functions in the manner described. The machine 1000 mayoperate as a standalone device or may be coupled (e.g., networked) toother machines. In a networked deployment, the machine 1000 may operatein the capacity of a server machine or a client machine in aserver-client network environment, or as a peer machine in apeer-to-peer (or distributed) network environment. The machine 1000 maycomprise, but not be limited to, a server computer, a client computer, apersonal computer (PC), a tablet computer, a laptop computer, a netbook,a set-top box (STB), a personal digital assistant (PDA), anentertainment media system, a cellular telephone, a smartphone, a mobiledevice, a wearable device (e.g., a smartwatch), a smart home device(e.g., a smart appliance), other smart devices, a web appliance, anetwork router, a network switch, a network bridge, or any machinecapable of executing the instructions 1008, sequentially or otherwise,that specify actions to be taken by the machine 1000. Further, whileonly a single machine 1000 is illustrated, the term “machine” shall alsobe taken to include a collection of machines that individually orjointly execute the instructions 1008 to perform any one or more of themethodologies discussed herein. The machine 1000, for example, maycomprise the client device 102 or any one of a number of server devicesforming part of the messaging server system 108. In some examples, themachine 1000 may also comprise both client and server systems, withcertain operations of a particular method or algorithm being performedon the server-side and with certain operations of the particular methodor algorithm being performed on the client-side.

The machine 1000 may include processors 1002, memory 1004, andinput/output (I/O) components 1038, which may be configured tocommunicate with each other via a bus 1040. In an example, theprocessors 1002 (e.g., a Central Processing Unit (CPU), a ReducedInstruction Set Computing (RISC) Processor, a Complex Instruction SetComputing (CISC) Processor, a Graphics Processing Unit (GPU), a DigitalSignal Processor (DSP), an Application Specific Integrated Circuit(ASIC), a Radio-Frequency Integrated Circuit (RFIC), another processor,or any suitable combination thereof) may include, for example, aprocessor 1006 and a processor 1010 that execute the instructions 1008.The term “processor” is intended to include multi-core processors thatmay comprise two or more independent processors (sometimes referred toas “cores”) that may execute instructions contemporaneously. AlthoughFIG. 10 shows multiple processors 1002, the machine 1000 may include asingle processor with a single-core, a single processor with multiplecores (e.g., a multi-core processor), multiple processors with a singlecore, multiple processors with multiples cores, or any combinationthereof.

The memory 1004 includes a main memory 1012, a static memory 1014, and astorage unit 1016, all accessible to the processors 1002 via the bus1040. The main memory 1004, the static memory 1014, and the storage unit1016 store the instructions 1008 embodying any one or more of themethodologies or functions described herein. The instructions 1008 mayalso reside, completely or partially, within the main memory 1012,within the static memory 1014, within machine-readable medium 1018within the storage unit 1016, within at least one of the processors 1002(e.g., within the processor's cache memory), or any suitable combinationthereof, during execution thereof by the machine 1000.

The I/O components 1038 may include a wide variety of components toreceive input, provide output, produce output, transmit information,exchange information, capture measurements, and so on. The specific U/Ocomponents 1038 that are included in a particular machine will depend onthe type of machine. For example, portable machines such as mobilephones may include a touch input device or other such input mechanisms,while a headless server machine will likely not include such a touchinput device. It will be appreciated that the I/O components 1038 mayinclude many other components that are not shown in FIG. 10. In variousexamples, the I/O components 1038 may include user output components1024 and user input components 1026. The user output components 1024 mayinclude visual components (e.g., a display such as a plasma displaypanel (PDP), a light-emitting diode (LED) display, a liquid crystaldisplay (LCD), a projector, or a cathode ray tube (CRT)), acousticcomponents (e.g., speakers), haptic components (e.g., a vibratory motor,resistance mechanisms), other signal generators, and so forth. The userinput components 1026 may include alphanumeric input components (e.g., akeyboard, a touch screen configured to receive alphanumeric input, aphoto-optical keyboard, or other alphanumeric input components),point-based input components (e.g., a mouse, a touchpad, a trackball, ajoystick, a motion sensor, or another pointing instrument), tactileinput components (e.g., a physical button, a touch screen that provideslocation and force of touches or touch gestures, or other tactile inputcomponents), audio input components (e.g., a microphone), and the like.

In further examples, the I/O components 1038 may include biometriccomponents 1028, motion components 1030, environmental components 1032,or position components 1034, among a wide array of other components. Forexample, the biometric components 1028 include components to detectexpressions (e.g., hand expressions, facial expressions, vocalexpressions, body gestures, or eye-tracking), measure biosignals (e.g.,blood pressure, heart rate, body temperature, perspiration, or brainwaves), identify a person (e.g., voice identification, retinalidentification, facial identification, fingerprint identification, orelectroencephalogram-based identification), and the like. The motioncomponents 1030 include acceleration sensor components (e.g.,accelerometer), gravitation sensor components, rotation sensorcomponents (e.g., gyroscope).

The environmental components 1032 include, for example, one or cameras(with still image/photograph and video capabilities), illuminationsensor components (e.g., photometer), temperature sensor components(e.g., one or more thermometers that detect ambient temperature),humidity sensor components, pressure sensor components (e.g.,barometer), acoustic sensor components (e.g., one or more microphonesthat detect background noise), proximity sensor components (e.g.,infrared sensors that detect nearby objects), gas sensors (e.g., gasdetection sensors to detection concentrations of hazardous gases forsafety or to measure pollutants in the atmosphere), or other componentsthat may provide indications, measurements, or signals corresponding toa surrounding physical environment.

With respect to cameras, the client device 102 may have a camera systemcomprising, for example, front cameras on a front surface of the clientdevice 102 and rear cameras on a rear surface of the client device 102.The front cameras may, for example, be used to capture still images andvideo of a user of the client device 102 (e.g., “selfies”), which maythen be augmented with augmentation data (e.g., filters) describedabove. The rear cameras may, for example, be used to capture stillimages and videos in a more traditional camera mode, with these imagessimilarly being augmented with augmentation data. In addition to frontand rear cameras, the client device 102 may also include a 360° camerafor capturing 360° photographs and videos.

Further, the camera system of a client device 102 may include dual rearcameras (e.g., a primary camera as well as a depth-sensing camera), oreven triple, quad or penta rear camera configurations on the front andrear sides of the client device 102. These multiple cameras systems mayinclude a wide camera, an ultra-wide camera, a telephoto camera, a macrocamera, and a depth sensor, for example.

The position components 1034 include location sensor components (e.g., aGPS receiver component), altitude sensor components (e.g., altimeters orbarometers that detect air pressure from which altitude may be derived),orientation sensor components (e.g., magnetometers), and the like.

Communication may be implemented using a wide variety of technologies.The I/O components 1038 further include communication components 1036operable to couple the machine 1000 to a network 1020 or devices 1022via respective coupling or connections. For example, the communicationcomponents 1036 may include a network interface component or anothersuitable device to interface with the network 1020. In further examples,the communication components 1036 may include wired communicationcomponents, wireless communication components, cellular communicationcomponents, Near Field Communication (NFC) components, Bluetooth®components (e.g., Bluetooth® Low Energy), Wi-Fi® components, and othercommunication components to provide communication via other modalities.The devices 1022 may be another machine or any of a wide variety ofperipheral devices (e.g., a peripheral device coupled via a USB).

Moreover, the communication components 1036 may detect identifiers orinclude components operable to detect identifiers. For example, thecommunication components 1036 may include Radio Frequency Identification(RFID) tag reader components, NFC smart tag detection components,optical reader components (e.g., an optical sensor to detectone-dimensional bar codes such as Universal Product Code (UPC) bar code,multi-dimensional bar codes such as Quick Response (QR) code, Azteccode, Data Matrix, Dataglyph, MaxiCode, PDF417, Ultra Code, UCC RSS-2Dbar code, and other optical codes), or acoustic detection components(e.g., microphones to identify tagged audio signals). In addition, avariety of information may be derived via the communication components1036, such as location via Internet Protocol (IP) geolocation, locationvia Wi-Fi® signal triangulation, location via detecting an NFC beaconsignal that may indicate a particular location, and so forth.

The various memories (e.g., main memory 1012, static memory 1014, andmemory of the processors 1002) and storage unit 1016 may store one ormore sets of instructions and data structures (e.g., software) embodyingor used by any one or more of the methodologies or functions describedherein. These instructions (e.g., the instructions 1008), when executedby processors 1002, cause various operations to implement the disclosedexamples.

The instructions 1008 may be transmitted or received over the network1020, using a transmission medium, via a network interface device (e.g.,a network interface component included in the communication components1036) and using any one of several well-known transfer protocols (e.g.,hypertext transfer protocol (HTTP)). Similarly, the instructions 1008may be transmitted or received using a transmission medium via acoupling (e.g., a peer-to-peer coupling) to the devices 1022.

Software Architecture

FIG. 11 is a block diagram 1100 illustrating a software architecture1104, which can be installed on any one or more of the devices describedherein. The software architecture 1104 is supported by hardware such asa machine 1102 that includes processors 1120, memory 1126, and I/Ocomponents 1138. In this example, the software architecture 1104 can beconceptualized as a stack of layers, where each layer provides aparticular functionality. The software architecture 1104 includes layerssuch as an operating system 1112, libraries 1110, frameworks 1108, andapplications 1106. Operationally, the applications 1106 invoke API calls1150 through the software stack and receive messages 1152 in response tothe API calls 1150.

The operating system 1112 manages hardware resources and provides commonservices. The operating system 1112 includes, for example, a kernel1114, services 1116, and drivers 1122. The kernel 1114 acts as anabstraction layer between the hardware and the other software layers.For example, the kernel 1114 provides memory management, processormanagement (e.g., scheduling), component management, networking, andsecurity settings, among other functionality. The services 1116 canprovide other common services for the other software layers. The drivers1122 are responsible for controlling or interfacing with the underlyinghardware. For instance, the drivers 1122 can include display drivers,camera drivers, BLUETOOTH® or BLUETOOTH® Low Energy drivers, flashmemory drivers, serial communication drivers (e.g., USB drivers), WI-FI®drivers, audio drivers, power management drivers, and so forth.

The libraries 1110 provide a common low-level infrastructure used by theapplications 1106. The libraries 1110 can include system libraries 1118(e.g., C standard library) that provide functions such as memoryallocation functions, string manipulation functions, mathematicfunctions, and the like. In addition, the libraries 1110 can include APIlibraries 1124 such as media libraries (e.g., libraries to supportpresentation and manipulation of various media formats such as MovingPicture Experts Group-4 (MPEG4), Advanced Video Coding (H.264 or AVC),Moving Picture Experts Group Layer-3 (MP3), Advanced Audio Coding (AAC),Adaptive Multi-Rate (AMR) audio codec, Joint Photographic Experts Group(JPEG or JPG), or Portable Network Graphics (PNG)), graphics libraries(e.g., an OpenGL framework used to render in two dimensions (2D) andthree dimensions (3D) in a graphic content on a display), databaselibraries (e.g., SQLite to provide various relational databasefunctions), web libraries (e.g., WebKit to provide web browsingfunctionality), and the like. The libraries 1110 can also include a widevariety of other libraries 1128 to provide many other APIs to theapplications 1106.

The frameworks 1108 provide a common high-level infrastructure that isused by the applications 1106. For example, the frameworks 1108 providevarious graphical user interface (GUI) functions, high-level resourcemanagement, and high-level location services. The frameworks 1108 canprovide a broad spectrum of other APIs that can be used by theapplications 1106, some of which may be specific to a particularoperating system or platform.

In an example, the applications 1106 may include a home application1136, a contacts application 1130, a browser application 1132, a bookreader application 1134, a location application 1142, a mediaapplication 1144, a messaging application 1146, a game application 1148,and a broad assortment of other applications such as a externalapplication 1140. The applications 1106 are programs that executefunctions defined in the programs. Various programming languages can beemployed to create one or more of the applications 1106, structured in avariety of manners, such as object-oriented programming languages (e.g.,Objective-C, Java, or C++) or procedural programming languages (e.g., Cor assembly language). In a specific example, the external application1140 (e.g., an application developed using the ANDROID™ or IOS™ softwaredevelopment kit (SDK) by an entity other than the vendor of theparticular platform) may be mobile software running on a mobileoperating system such as IOS™, ANDROID™, WINDOWS® Phone, or anothermobile operating system. In this example, the external application 1140can invoke the API calls 1150 provided by the operating system 1112 tofacilitate functionality described herein.

Glossary

“CARRIER SIGNAL” in this context refers to any intangible medium that iscapable of storing, encoding, or carrying transitory or non-transitoryinstructions for execution by the machine, and includes digital oranalog communications signals or other intangible medium to facilitatecommunication of such instructions. Instructions may be transmitted orreceived over the network using a transitory or non-transitorytransmission medium via a network interface device and using any one ofa number of well-known transfer protocols.

“CLIENT DEVICE” in this context refers to any machine that interfaces toa communications network to obtain resources from one or more serversystems or other client devices. A client device may be, but is notlimited to, a mobile phone, desktop computer, laptop, PDAs, smartphones, tablets, ultra books, netbooks, laptops, multi-processorsystems, microprocessor-based or programmable consumer electronics, gameconsoles, set-top boxes, or any other communication device that a usermay use to access a network.

“COMMUNICATIONS NETWORK” in this context refers to one or more portionsof a network that may be an ad hoc network, an intranet, an extranet, avirtual private network (VPN), a local area network (LAN), a wirelessLAN (WLAN), a wide area network (WAN), a wireless WAN (WWAN), ametropolitan area network (MAN), the Internet, a portion of theInternet, a portion of the Public Switched Telephone Network (PSTN), aplain old telephone service (POTS) network, a cellular telephonenetwork, a wireless network, a Wi-Fi® network, another type of network,or a combination of two or more such networks. For example, a network ora portion of a network may include a wireless or cellular network andthe coupling may be a Code Division Multiple Access (CDMA) connection, aGlobal System for Mobile communications (GSM) connection, or other typeof cellular or wireless coupling. In this example, the coupling mayimplement any of a variety of types of data transfer technology, such asSingle Carrier Radio Transmission Technology (1×RTT), Evolution-DataOptimized (EVDO) technology, General Packet Radio Service (GPRS)technology, Enhanced Data rates for GSM Evolution (EDGE) technology,third Generation Partnership Project (3GPP) including 3G, fourthgeneration wireless (4G) networks, Universal Mobile TelecommunicationsSystem (UMTS), High Speed Packet Access (HSPA), WorldwideInteroperability for Microwave Access (WiMAX), Long Term Evolution (LTE)standard, others defined by various standard setting organizations,other long range protocols, or other data transfer technology.

“EPHEMERAL MESSAGE” in this context refers to a message that isaccessible for a time-limited duration. An ephemeral message may be atext, an image, a video, and the like. The access time for the ephemeralmessage may be set by the message sender. Alternatively, the access timemay be a default setting or a setting specified by the recipient.Regardless of the setting technique, the message is transitory.

“MACHINE-READABLE MEDIUM” in this context refers to a component, device,or other tangible media able to store instructions and data temporarilyor permanently and may include, but is not limited to, random-accessmemory (RAM), read-only memory (ROM), buffer memory, flash memory,optical media, magnetic media, cache memory, other types of storage(e.g., Erasable Programmable Read-Only Memory (EEPROM)) and/or anysuitable combination thereof. The term “machine-readable medium” shouldbe taken to include a single medium or multiple media (e.g., acentralized or distributed database, or associated caches and servers)able to store instructions. The term “machine-readable medium” shallalso be taken to include any medium, or combination of multiple media,that is capable of storing instructions (e.g., code) for execution by amachine, such that the instructions, when executed by one or moreprocessors of the machine, cause the machine to perform any one or moreof the methodologies described herein. Accordingly, a “machine-readablemedium” refers to a single storage apparatus or device, as well as“cloud-based” storage systems or storage networks that include multiplestorage apparatus or devices. The term “machine-readable medium”excludes signals per se.

“COMPONENT” in this context refers to a device, physical entity, orlogic having boundaries defined by function or subroutine calls, branchpoints, APIs, or other technologies that provide for the partitioning ormodularization of particular processing or control functions. Componentsmay be combined via their interfaces with other components to carry outa machine process. A component may be a packaged functional hardwareunit designed for use with other components and a part of a program thatusually performs a particular function of related functions. Componentsmay constitute either software components (e.g., code embodied on amachine-readable medium) or hardware components. A “hardware component”is a tangible unit capable of performing certain operations and may beconfigured or arranged in a certain physical manner. In various exampleembodiments, one or more computer systems (e.g., a standalone computersystem, a client computer system, or a server computer system) or one ormore hardware components of a computer system (e.g., a processor or agroup of processors) may be configured by software (e.g., an applicationor application portion) as a hardware component that operates to performcertain operations as described herein.

A hardware component may also be implemented mechanically,electronically, or any suitable combination thereof. For example, ahardware component may include dedicated circuitry or logic that ispermanently configured to perform certain operations. A hardwarecomponent may be a special-purpose processor, such as aField-Programmable Gate Array (FPGA) or an ASIC. A hardware componentmay also include programmable logic or circuitry that is temporarilyconfigured by software to perform certain operations. For example, ahardware component may include software executed by a general-purposeprocessor or other programmable processor. Once configured by suchsoftware, hardware components become specific machines (or specificcomponents of a machine) uniquely tailored to perform the configuredfunctions and are no longer general-purpose processors. It will beappreciated that the decision to implement a hardware componentmechanically, in dedicated and permanently configured circuitry, or intemporarily configured circuitry (e.g., configured by software) may bedriven by cost and time considerations. Accordingly, the phrase“hardware component” (or “hardware-implemented component”) should beunderstood to encompass a tangible entity, be that an entity that isphysically constructed, permanently configured (e.g., hardwired), ortemporarily configured (e.g., programmed) to operate in a certain manneror to perform certain operations described herein. Consideringembodiments in which hardware components are temporarily configured(e.g., programmed), each of the hardware components need not beconfigured or instantiated at any one instance in time. For example,where a hardware component comprises a general-purpose processorconfigured by software to become a special-purpose processor, thegeneral-purpose processor may be configured as respectively differentspecial-purpose processors (e.g., comprising different hardwarecomponents) at different times. Software accordingly configures aparticular processor or processors, for example, to constitute aparticular hardware component at one instance of time and to constitutea different hardware component at a different instance of time.

Hardware components can provide information to, and receive informationfrom, other hardware components. Accordingly, the described hardwarecomponents may be regarded as being communicatively coupled. Wheremultiple hardware components exist contemporaneously, communications maybe achieved through signal transmission (e.g., over appropriate circuitsand buses) between or among two or more of the hardware components. Inembodiments in which multiple hardware components are configured orinstantiated at different times, communications between such hardwarecomponents may be achieved, for example, through the storage andretrieval of information in memory structures to which the multiplehardware components have access. For example, one hardware component mayperform an operation and store the output of that operation in a memorydevice to which it is communicatively coupled. A further hardwarecomponent may then, at a later time, access the memory device toretrieve and process the stored output.

Hardware components may also initiate communications with input oroutput devices, and can operate on a resource (e.g., a collection ofinformation). The various operations of example methods described hereinmay be performed, at least partially, by one or more processors that aretemporarily configured (e.g., by software) or permanently configured toperform the relevant operations. Whether temporarily or permanentlyconfigured, such processors may constitute processor-implementedcomponents that operate to perform one or more operations or functionsdescribed herein. As used herein, “processor-implemented component”refers to a hardware component implemented using one or more processors.Similarly, the methods described herein may be at least partiallyprocessor-implemented, with a particular processor or processors beingan example of hardware. For example, at least some of the operations ofa method may be performed by one or more processors orprocessor-implemented components. Moreover, the one or more processorsmay also operate to support performance of the relevant operations in a“cloud computing” environment or as a “software as a service” (SaaS).For example, at least some of the operations may be performed by a groupof computers (as examples of machines including processors), with theseoperations being accessible via a network (e.g., the Internet) and viaone or more appropriate interfaces (e.g., an API). The performance ofcertain of the operations may be distributed among the processors, notonly residing within a single machine, but deployed across a number ofmachines. In some example embodiments, the processors orprocessor-implemented components may be located in a single geographiclocation (e.g., within a home environment, an office environment, or aserver farm). In other example embodiments, the processors orprocessor-implemented components may be distributed across a number ofgeographic locations.

“PROCESSOR” in this context refers to any circuit or virtual circuit (aphysical circuit emulated by logic executing on an actual processor)that manipulates data values according to control signals (e.g.,“commands,” “op codes,” “machine code,”, etc.) and which producescorresponding output signals that are applied to operate a machine. Aprocessor may, for example, be a Central Processing Unit (CPU), aReduced Instruction Set Computing (RISC) processor, a ComplexInstruction Set Computing (CISC) processor, a Graphics Processing Unit(GPU), a Digital Signal Processor (DSP), an ASIC, a Radio-FrequencyIntegrated Circuit (RFIC) or any combination thereof. A processor mayfurther be a multi-core processor having two or more independentprocessors (sometimes referred to as “cores”) that may executeinstructions contemporaneously.

“TIMESTAMP” in this context refers to a sequence of characters orencoded information identifying when a certain event occurred, forexample giving date and time of day, sometimes accurate to a smallfraction of a second.

Changes and modifications may be made to the disclosed embodimentswithout departing from the scope of the present disclosure. These andother changes or modifications are intended to be included within thescope of the present disclosure, as expressed in the following claims.

Modules, Components, and Logic

Certain embodiments are described herein as including logic or a numberof components, modules, or mechanisms. Modules can constitute eithersoftware modules (e.g., code embodied on a machine-readable medium or ina transmission signal) or hardware modules. A “hardware module” is atangible unit capable of performing certain operations and can beconfigured or arranged in a certain physical manner. In various exampleembodiments, one or more computer systems (e.g., a standalone computersystem, a client computer system, or a server computer system) or one ormore hardware modules of a computer system (e.g., a processor or groupof processors) is configured by software (e.g., an application orapplication portion) as a hardware module that operates to performcertain operations as described herein.

In some embodiments, a hardware module is implemented mechanically,electronically, or any suitable combination thereof. For example, ahardware module can include dedicated circuitry or logic that ispermanently configured to perform certain operations. For example, ahardware module can be a special-purpose processor, such as aField-Programmable Gate Array (FPGA) or an Application-SpecificIntegrated Circuit (ASIC). A hardware module may also includeprogrammable logic or circuitry that is temporarily configured bysoftware to perform certain operations. For example, a hardware modulecan include software encompassed within a general-purpose processor orother programmable processor. It will be appreciated that the decisionto implement a hardware module mechanically, in dedicated andpermanently configured circuitry, or in temporarily configured circuitry(e.g., configured by software) can be driven by cost and timeconsiderations.

Accordingly, the phrase “hardware module” should be understood toencompass a tangible entity, be that an entity that is physicallyconstructed, permanently configured (e.g., hardwired), or temporarilyconfigured (e.g., programmed) to operate in a certain manner or toperform certain operations described herein. As used herein,“hardware-implemented module” refers to a hardware module. Consideringembodiments in which hardware modules are temporarily configured (e.g.,programmed), each of the hardware modules need not be configured orinstantiated at any one instance in time. For example, where a hardwaremodule comprises a general-purpose processor configured by software tobecome a special-purpose processor, the general-purpose processor may beconfigured as respectively different special-purpose processors (e.g.,comprising different hardware modules) at different times. Software canaccordingly configure a particular processor or processors, for example,to constitute a particular hardware module at one instance of time andto constitute a different hardware module at a different instance oftime.

Hardware modules can provide information to, and receive informationfrom, other hardware modules. Accordingly, the described hardwaremodules can be regarded as being communicatively coupled. Where multiplehardware modules exist contemporaneously, communications can be achievedthrough signal transmission (e.g., over appropriate circuits and buses)between or among two or more of the hardware modules. In embodiments inwhich multiple hardware modules are configured or instantiated atdifferent times, communications between or among such hardware modulesmay be achieved, for example, through the storage and retrieval ofinformation in memory structures to which the multiple hardware moduleshave access. For example, one hardware module performs an operation andstores the output of that operation in a memory device to which it iscommunicatively coupled. A further hardware module can then, at a latertime, access the memory device to retrieve and process the storedoutput. Hardware modules can also initiate communications with input oroutput devices, and can operate on a resource (e.g., a collection ofinformation).

The various operations of example methods described herein can beperformed, at least partially, by one or more processors that aretemporarily configured (e.g., by software) or permanently configured toperform the relevant operations. Whether temporarily or permanentlyconfigured, such processors constitute processor-implemented modulesthat operate to perform one or more operations or functions describedherein. As used herein, “processor-implemented module” refers to ahardware module implemented using one or more processors.

Similarly, the methods described herein can be at least partiallyprocessor-implemented, with a particular processor or processors beingan example of hardware. For example, at least some of the operations ofa method can be performed by one or more processors orprocessor-implemented modules. Moreover, the one or more processors mayalso operate to support performance of the relevant operations in a“cloud computing” environment or as a “software as a service” (SaaS).For example, at least some of the operations may be performed by a groupof computers (as examples of machines including processors), with theseoperations being accessible via a network (e.g., the Internet) and viaone or more appropriate interfaces (e.g., an API).

The performance of certain of the operations may be distributed amongthe processors, not only residing within a single machine, but deployedacross a number of machines. In some example embodiments, the processorsor processor-implemented modules are located in a single geographiclocation (e.g., within a home environment, an office environment, or aserver farm). In other example embodiments, the processors orprocessor-implemented modules are distributed across a number ofgeographic locations.

1. A method comprising: displaying, by one or more processors of aneyewear device, a plurality of media content control options; detecting,by a touch input interface of the eyewear device, a first touch inputcomprising a single finger touching the touch input interface, the firsttouch input being associated with a first media content control optionof the plurality of media content control options; based on detectingthe first touch input, causing a cursor to track the first touch inputto navigate through the plurality of media content control options tothe first media content control option; based on detecting that thesingle finger has not been released from touching the touch inputinterface, displaying, by the one or more processors, a second mediacontent control option related to the first media content controloption; performing a first display operation comprising a selectionassociated with the second media content control option based onmovement of the single finger along the touch input interface;determining that an additional finger has been added to touch the touchinput interface together with the single finger such that the touchinput interface is receiving touch input by two fingers; and performinga second display operation different from the first display operation inresponse to determining that the additional finger has been added totouch the touch input interface together with the single finger afterdetecting the first touch input comprising the single finger.
 2. Themethod of claim 1, further comprising: detecting movement of a singlefinger along the touch input interface; and in response to the detectedmovement of the single finger along the touch input interface, causingthe cursor to track the single finger movement to navigate through theplurality of media content control options.
 3. The method of claim 1,further comprising: during detection of the single finger continuing totouch the touch input interface, determining that the first mediacontent control option has been highlighted by the cursor for athreshold period of time; and in response to determining that the firstmedia content control option has been highlighted by the cursor for thethreshold period of time, selecting the first media control option. 4.The method of claim 1, wherein the touch input interface is integratedinto a frame of the eyewear device.
 5. The method of claim 1, whereinthe first media content control option comprises a volume adjustmentoption, and wherein displaying the second media content control optioncomprises: displaying a slider for adjusting volume of media contentbeing played back on the eyewear device; and detecting movement of thesingle finger along the touch interface to change a position of theslider to adjust the volume.
 6. The method of claim 1, furthercomprising: removing the second media content control option from thedisplay in response to detecting a release of the single finger from thetouch input interface; and redisplaying the plurality of media contentcontrol options in response to detecting the release of the singlefinger from the touch input interface.
 7. The method of claim 1, whereinthe first media content control option comprises a seek option, andwherein displaying the second media content control option comprises:displaying a slider for adjusting a play position of media content beingplayed back on the eyewear device; and detecting movement of the singlefinger along the touch interface to change a position of the slider toadjust the play position.
 8. The method of claim 1, wherein the firstmedia content control option comprises a series selection option, andwherein displaying the second media content control option comprises:displaying a plurality of series identifiers; and detecting movement ofthe single finger along the touch input interface to move the cursor tohighlight a given series identifier of the plurality of seriesidentifiers.
 9. The method of claim 8, further comprising: displaying aplurality of episode identifiers in response to determining that thecursor has highlighted the given series identifier for a thresholdperiod of time; and moving the cursor to highlight a given episodeidentifier of the plurality of episode identifiers based on detectedmovement of the single finger along the touch input interface.
 10. Themethod of claim 9, further comprising playing back an episode of theseries corresponding to the given episode identifier in response todetermining that the single finger has been released from the touchinput interface.
 11. The method of claim 9, wherein the second displayoperation comprises redisplaying the plurality of series identifiers.12. The method of claim 11, further comprising: detecting movement ofthe two fingers along the touch input interface and causing the cursorto move to highlight another series identifier of the plurality ofseries identifiers based on the detected movement of the two fingersalong the touch input.
 13. An eyewear device comprising: a touch inputinterface: a storage device comprising instructions; and a processorconfigured to execute the instructions to perform operations comprising:displaying a plurality of media content control options; detecting,using the touch input interface of the eyewear device, a first touchinput comprising a single finger touching the touch input interface, thefirst touch input being associated with a first media content controloption of the plurality of media content control options; based ondetecting the first touch input, causing a cursor to track the firsttouch input to navigate through the plurality of media content controloptions to the first media content control option; based on detectingthat the single finger has not been released from touching the touchinput interface, displaying, by the one or more processors, a secondmedia content control option related to the first media content controloption; performing a first display operation comprising a selectionassociated with the second media content control option based onmovement of the single finger along the touch input interface;determining that an additional finger has been added to touch the touchinput interface together with the single finger such that the touchinput interface is receiving touch input by two fingers; and performinga second display operation different from the first display operation inresponse to determining that the additional finger has been added totouch the touch input interface together with the single finger afterdetecting the first touch input comprising the single finger.
 14. Theeyewear device of claim 13, wherein the operations further comprise:detecting movement of a single finger along the touch input interface;and in response to the detected movement of the single finger along thetouch input interface, causing the cursor to track the single fingermovement to navigate through the plurality of media content controloptions.
 15. The eyewear device of claim 13, wherein the operationsfurther comprise: during detection of the single finger continuing totouch the touch input interface, determining that the first mediacontent control option has been highlighted by the cursor for athreshold period of time; and in response to determining that the firstmedia content control option has been highlighted by the cursor for thethreshold period of time, selecting the first media control option. 16.The eyewear device of claim 13, wherein the eyewear device furtherincludes an eyewear frame, and wherein the touch input interface isintegrated into the eyewear frame of the eyewear device.
 17. The eyeweardevice of claim 13, wherein the first media content control optioncomprises a volume adjustment option, and wherein displaying the secondmedia content control option comprises: displaying a slider foradjusting volume of media content being played back on the eyeweardevice; and detecting movement of the single finger along the touchinterface to change a position of the slider to adjust the volume. 18.The eyewear device of claim 13, wherein the operations further comprise:removing from display the second media content control option inresponse to releasing the single finger from the touch input interface;and redisplaying the plurality of media content control options inresponse to releasing the single finger from the touch input interface.19. The eyewear device of claim 13, wherein the first media contentcontrol option comprises a seek option, and wherein displaying thesecond media content control option comprises: displaying a slider foradjusting a play position of media content being played back on theeyewear device; and detecting movement of the single finger along thetouch interface to change a position of the slider to adjust the playposition.
 20. A non-transitory machine-readable storage mediumcomprising instructions that, when executed by one or more processors ofa machine, cause the machine to perform operations comprising:displaying a plurality of media content control options; detecting, by atouch input interface of the eyewear device, a first touch inputcomprising a single finger touching the touch input interface, the firsttouch input being associated with a first media content control optionof the plurality of media content control options; based on detectingthe first touch input, causing a cursor to track the first touch inputto navigate through the plurality of media content control options tothe first media content control option; based on detecting that thesingle finger has not been released from touching the touch inputinterface, displaying, by the one or more processors, a second mediacontent control option related to the first media content controloption; performing a first display operation comprising a selectionassociated with the second media content control option based onmovement of the single finger along the touch input interface;determining that an additional finger has been added to touch the touchinput interface together with the single finger such that the touchinput interface is receiving touch input by two fingers; and performinga second display operation different from the first display operation inresponse to determining that the additional finger has been added totouch the touch input interface together with the single finger afterdetecting the first touch input comprising the single finger.